In the group stage of the 2026 FIFA World Cup, the Netherlands defeated Sweden 5-1. Summerville came off the bench and scored, becoming the third player in Dutch history to score in his first two FIFA World Cup matches.

In the group stage opener against Japan, Summerville marked his World Cup debut with a goal and an assist.

Against Sweden, Summerville added another goal as a substitute.

According to statistics, Summerville joined Depay and Gakpo as the only Dutch players to score in their first two World Cup matches.